Home / 136,247.10-187,991.19-79,632.54

Finding the Fourth Proportional to 136,247.10, 187,991.19 and 79,632.54

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Solution

The fourth proportional to 136,247.10, 187,991.19 and 79,632.54 is: 109,875.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,247.10 : 187,991.19 = 79,632.54 : x
  2. Step 2: Convert to fraction form
    136,247.10/187,991.19 = 79,632.54/x
  3. Step 3: Cross multiply
    136,247.10x = 187,991.19 × 79,632.54
  4. Step 4: Simplify right side
    136,247.10x = 14,970,215,957.32
  5. Step 5: Solve for x
    x = 14,970,215,957.32/136,247.10
  6. Step 6: Final answer
    x = 109,875.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.